Quote Originally Posted by Cilia View Post
I'm a dark knight.

I've accepted that today's allies may be tomorrow's enemies; this actually happens with the Church in 3.0 (though how much the Church could be considered an ally is tenuous at best).

If it comes to that, I will do what I must.

Until then, there's no reason to suspect Tataru of wrongdoing. The only thing supporting that argument is an interpretation of her words and a smile, neither of which are concrete evidence and that viewpoint does not match up with her characterization.
About Y'shtola 's new clothes, I think she earn a lot of money working on the "Forgotten Knight", did nobody consider that option? xD